The summer 2025 was record high temperature in Nagoya, where in August lowest temperature sometimes reached 29 degree Celsius on early morning. Most days were +37~+41 degree Celsius.
Used 80w solar panel.
Also I connected 12v jack connector to my 3D printer power unit to charge power bank when sunsets.
Measurement.
To overcome this heat 🥵 with minimal cost of electricity, I have undertook following actions.
1. Hanged infrared wave reflection sheet on windows.
2. Installed solar panel on balcony to recover the portion of electricity used.
3. Since, the apartment I live was not my property, the only choice to transfer energy was electromagnetic way through windows. Thus, I don't need to drill a hole for cabling.
Outside of window.
ZVS oscillator for making AC oscillation from D C of solar panel.
In the room connected portable AC power bank.
Connected long cord to this power bank and supplied power to Air Conditioner.
Measurement.
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